64241157 has 4 divisors (see below), whose sum is σ = 85654880. Its totient is φ = 42827436.

The previous prime is 64241153. The next prime is 64241161. The reversal of 64241157 is 75114246.

64241157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (64241153) and next prime (64241161).

It is not a de Polignac number, because 64241157 - 2² = 64241153 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64241153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10706857 + ... + 10706862.

It is an arithmetic number, because the mean of its divisors is an integer number (21413720).

Almost surely, 2^64241157 is an apocalyptic number.

It is an amenable number.

64241157 is a deficient number, since it is larger than the sum of its proper divisors (21413723).

64241157 is a wasteful number, since it uses less digits than its factorization.

64241157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21413722.

The product of its digits is 6720, while the sum is 30.

The square root of 64241157 is about 8015.0581407748. The cubic root of 64241157 is about 400.5017806938.

The spelling of 64241157 in words is "sixty-four million, two hundred forty-one thousand, one hundred fifty-seven".